/*
 * Copyright 2010-2020 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.engine.impl.interceptor;

import org.activiti.engine.api.internal.Internal;

/**
 * A session factory produces a {@link Session} instance that has the lifespane
 * of one {@link Command}. 抽象工厂，XXXManageFactory就是具体的工厂类
 */
@Internal
public interface SessionFactory {

	/**用于返回具体工厂类型的class
	 * @return
	 */
	Class<?> getSessionType();

	/**
	 * 用于创建并返回具体的实体管理类
	 * 
	 * @param commandContext
	 * @return
	 */
	Session openSession(CommandContext commandContext);

}
